The CS-150 with the 1A measuring angle of its predecessor together with the new CS-160 which has a smaller measuring angle of 1/3A enable measurements of the luminance and chromaticity of small light-emitting surfaces, such as micro displays or of small, sharply defined areas of distant light sources such as traffic or street lights.

In what is probably the major research effort in this area, Grimm [2003] used static laboratory and dynamic driving tests of various interior lighting configurations, asking subjects to give subjective ratings of visual comfort and examining objective tests of threshold luminance detection.

HDR imaging involves a series of photographs of a luminous scene from the same viewpoint, ranging from fully underexposed to fully overexposed images, which then are processed by software to produce luminance maps [Reinhard 2006].

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